Vibrating apparatus



May .9, 1931. s. CHADWICK 8 VIBRATING APPARATUS Filed April 6.31928 4 Sheets-Sheet 1- 4 Sheets-Sheet 2 MAN I ll n I I I I I I I 2 W HM ".mMmmm." III I I ll lla l 1 I ll A y 1931- L. s. CHADWICK 1,805,758

VIBRATING APPARATUS Filed April e, 1928 4 Sheets-Sheet 4 x QP M 311 ueutoo Patented li/lay 19, 1931 was; oHen-W; c x-;..o1" mlmiknmem i O a i '7 VIBBATING: ABRABAJT ISF Application filed April 6,

This invention relates to an improved vibrating -ma-ch-ine suitable I for use inhomes gymnasiunas, doctors offices, sanitariums; and

like-places; fone-Xercising'and niassagingvarious parts ofthebody, and it' pertains-more especially. to that class of vibrating machines involving anapplicator band or-=strap that is adapted-togbe-engaged about the'part'ofthe body-thzit-istobetreated, andme'chanism' for vibrating the band -on strap by imparting v to it in rapid [succession quickj erks -inf opposite directions. v

Among the objects: of the invention arethe production ofa-machine ofthe above nature that is highly efficient, yet'veryl simple of construction and relatively inexpensive that is compact that is prefe'rablydesi g -ned for att'ach'ment to a Wall or other vertioal support ing -sur-f'ace,- though "the invention issusceptible toincorporati'on in astructureth'at may standupon the floor;- thatninvolves simple means for changing-thewlength ofthe' stroke of the applicator strap sothat its action may be rendered suitable for the requirements of i 7955 different individuals, or'better'adapted to'the treatment" ofthe diiferent parts or members of the body, it being evident that a shorter and more gentle strokerequired for the treatment of theneck; for-exampld thaniis required for effective treatment of the arms or legs; shoulders,- ofthe b'ody,

The inventioncontemplates the use 1 of a-v-i--' b ratingbar that is pivotally-supported'inten tially vertical f axis, and i the 1 applicator strap or band has its respective ends suitably "con; 'necte'd to the" vibrating bar on opposite sides of the latters' pivotal axis. V A further object of the invention i's t0- provide means for facilitating-likeadjustment-of the connections between the endsof 'theap'pli-f cator stra'p and-baron opposite sides-.ofiand with respect to, the'latters oscillatingaxisg loack=and other such parts. v v

' I 1 forwardly -offithe upperend of the base 1,

mediate its ends for oscillation =on=a substa-nand, further, to provide means for simultane,

1928.5 Serial'Nb. 267,829;

closed: by -reference' to theaccompanying drawings; wherein Fig; lrepresents: a front elevation,- and-Fig 2 a plan view, of a vibrating: machine constructed in accordance with the invention yFigs; 3; 4, 5 and-"6 are sectional details onthe respective correspondingly w numbered:lines'of Fig. 2 Figs. T'and 8- are,

respectively; a fra mentary front elevation,

andaqblanview; of a modification ofthe in vention; Fig. 9 is a sectionaldetail on the line 9-9 of Fig. 7 Fig. 10 is a plan vieW-of'a furthermodified, form of the-invention; 1 and 1-1 isadetail; According to the; present disclosure; the machine is constructed for attachment to 'a Wall or other verticalsupport', and the -same includes anbase l thatiisadapt'ed tobe secured; asby screws or bolts "2, to awall or otherlike' support, and s'uitablyfastened to theiba e ad; jacentr the right Y hand side thereof; and ar? ranged with its shaft vertical-5 is-an electric motom3' having a relatively: small pulley-Alisa; cured #to :the l'c'n'i erend' of "its armature shaft;

Journaleddnbearingsb that are suppor'tedby V I and for wardlyof'the left handsideof tho base 1 is avj ackshaft16 that 'has 'a relatively large pulley: 7 ffastened 'to its lower end; and a belt 8 is engaged about saidfpullcy andtho previously mentioned pull'ey 4; A cran k -disk lOiis fastenedito the upper end 'ofthe shaftfii Bearings 12 and' l3 are-supported and journa'led within these hearings is a'rock pinned or otherwise secured between said bearings, and a; link 17 connects thefree end of said arm vvith a; crank pin 18 on;the previously mentioned disk loil I FiXed to'= the upperend of'the-- rock shaft 14 is a head" '20"- that carries a' vib'rating; bar

21; I'm the present embodiment; this bar consists of a relatively' heavy cylindrical member that is fixed in the head 20', and slidable along the ban on; opposite} sides of said-head are blocks 22: Keys-=2 3, thatare set' 1 Within 1 the blocks 1 22, engage Withina keyway 24 in thebarso'that'While-said'blocks' I Q are capable ofbeingadjustedlengthwise of the bar; they'are held against angu la emove ment With' respect: thereto: pulley, 25" is this connection between the two blocks, both are moved inwardly or outwardly a like distance along the opposite end portions of the bar 21 when either one ofthe blocks is manually shifted to different positions on the bar. A coverplate is applied to the recessed front surface of the head 20 and the flexible elements 26 passbetween it and the depressed front surface cfsaid head; and'a locking screw ,31 is threaded through the plate 30,

and on its inner end is swiveled a shoe 32 between which, and the opposed surface of the head 20, the flexible elements 26 are adapted to be clamped when said screw is turned inwardly by means of its hand wheel 33.

A yielding connection may be provided between each of the pulleys 25 and the vibrating bar 21 to take up slack that may occur in the flexible elements 26, and in the present instance this is effected by extending shanks 35 ofthe, pulley hangers 36-into bores in the ends of the bar 21, and by disposing compressionsprings 37 between the inner ends of said shanks and the bottoms of said bores. The bar is slotted in the region of said shanks, and screws or pins 38 are engaged through said slots and driven into the shanks for holding the pulleyhangers against rotation and for preventing their shanks from being projected from the bores when, for any reason, the flexible elements are disengaged from thepulleys.

40 designates the applicator strap or band, and its looped ends 41 are engaged over hooks 42 that are carried by the'blocks 22.

The electric motor 30 is supplied with current through suitable conductors (not shown), and the circuit of the motor includes a switch 45 that may be mounted on the base ,1 alongside the motor. When the switch is closed and the motor thus set in operation it drives the jack shaft 6 through the belt connections already described and as the disk 10 that is carried by saidshaft is rotated it vibrates'the bar 21 through its connection therewith consisting of the crank pin 18, link17, arm 15 and rock shaft 14.

The user engages the applicator strap 40 about the part of the body that is to be exer cised or massaged and draws said strap taut so that the vibrations of the arm 21 are imparted through the strap to the body. If he slides one of the blocks 22 along the vibrating bar until the desired length of stroke is attained, the other block being simultaneously shifted a like distance from the center of oscillation of the vibrating arm through the medium of the flexible elements 26. When the desired adjustment is obtained, the locking screw3l is tightened to hold the blocks, through means of said flexible elements, in their new positions.

Figs. 7 8 and 9 illustrate a modified construction in which the vibrator arm consists of a flat bar, the same being designated 45. This bar is secured, as by screws 46, to ahead 47 on the rock shaft designated, as in the former case, 14. Slots 48 extend longitudinally of the bar 45 on opposite sides of its center of oscillation, and at like distances along each of the slots are circular openings 49. A member 50 is adjustable along each of the slots 48, and it includes a neck 51 that is cylindrical and of a diameter to fit the circular openings 49, excepting for the fact that its sides are flattened and are spaced apart a distance substantially equal to the width of the slot. As a consequence of this construction, when the member is turned to dispose the flattened sides of its neck parallel with the axis of the slot, the member'may be shifted along the slot, but itmay be turned at an angle to this position when it occupies any one of theholes 49, and whenso turned it is held against movement along the slot. Hooks 53 are sccured to the members 50 for the attachment of the looped ends of the applicator strap 40. It is evident from thisdescription that the hooks 53 may be adjusted toward and from the center of oscillation of the bar 45 to adjust the stroke of the strap.

'Astill simpler form of vibrating bar is illustrated in Fig. 10 where slides 55 are adapted to be adjusted along the bar 56 and held in any adjusted position thereon by means of set screws 57. Hooks 58 are carried by the slides55 for the attachment of the looped ends of the applicator strap. To facilitate like adjustment of the two slides 55, the opposite ends of thevibrating bar are shown as set off in like spaces by indicating marks designated 59. I v

Referring again to the first described form of the invention, and with respect to means for taking up any slack that may occur in the flexible elements 26: in lieu of yieldingly mounting the pulleys 25 as hereinbefore explained, an adjustment, which may be in the nature of thewell known turn-buckle, may be incorporated in each of the elements 26, or the elements may be adjustably connected to the blocks 22 that carry the applicator strap hooks, as illustrated in Fig. 11. As here shown, the block 22 has a lug 60 within which a screw 61 is mounted for free rotation, and the screw is extended through an opening in astirrup 62 and threaded into a nut 63 that is eon das confined within said stirrup, the stirrup being secured, as by rivets 64:, to the adjacent end of the corresponding flexible element 26.

Itshould also be explained that vacuum cup and so-called spade handle applicators are commonly used with machines of this character, and in the use of such applicators the stroke adjustment provided by my invention is especially'advantageous, as it enables the user to obtain just the degree of action required in his or her particular case.

Having thusdescribed my invention, what I claim is V 1. In a vibrating machine, the eombination of a vibrating bar, mechanism for actuating the same, members movable along the bar on opposite sides of its center of oscillation, guides carried by the bar outwardly beyond the range of movement of said members, two flexible elements engaged,-respectively, with said guides each havingits opposite ends connected, respectively, to the opposed members whereby said members, when adjusted, are caused to move simultaneously like distances in opposite directions, means for securing the members in various adjusted positions along the bar through the instrumentality of said elements, and means for connecting the opposite ends of an applicator strap, to said members.

2. In a vibrating machine, the combination of a vibrating bar, members movable along said bar on opposite sides of its center of oscillation, a guide adjacent each end of.

the bar, two flexible elements each having one of its ends secured to one of said members and engaged over the guide at the adja cent end of the bar and its opposite end-connected to the other member whereby simultaneous and like adjustment ofthe two-meim hers is adapted to'be effected, and means for connecting the'opposite ends of an applicator strap to said members.

3. In a vibrating machine, the combination of a vibrating bar, members movable along said bar on opposite sides of its center of oscillation, a guide adjacent each end of the bar, two flexibleelements each having one of its ends secured to one of said members and engaged over the guide at the adj acent end of the bar and its opposite end connected to the other member whereby simultaneous and like adjustment of the two memhers is adapted to be effected, means for locking the members in various positions to which they are adjusted through the instrumentality of said flexible elements,and means for connecting the opposite ends of an'applicator strap to said members. I

4. In a vibrating machine, the combination of a vibrating bar, members movable along said bar onopposite sides of its center of oscillation, a guide adjacent each end of the bar two flexible elements each havin one of its ends secured to one of said membersaandengagedioven thez-guidesafi the adjacent end of .the'bar. and its opposite end con; nected Lto1the1othen member whereby simultaf neousr. and. like adjustment ofz the two mem+ bers is adapteditobeeefliected, means for: take ing upyslaokain. said flexible elements, and

applicator strap iuoasaidimembers.

5. In a vibrating machine, the icombina tioni of a vibrating, bar," members movable I along the barvon opposite sidesof its center of oscillatioinime'ans for connecting the re spective 'ejndsofa anapplicatoi: strap to said v of oscillation, means for connecting the. oppositeends of an applicator strapto 'saidmembers, a. guide ad ustably carr edby each'end olthe bar, means urging the guides outwardly,and%yflexible elements each of whichihas one of its ends connected to one'of said members andengaged about the guide at th'ead jacent end of the bar. and itsopposite end secured to theother of said members;-

"7. 111a vibrating 'machine,'the combine -e tion. of a vibrating bar, mechanism for actuatingthe same, members movab-le along the :bar on opposite sides of, its center: of

oscillation, guides carried by the hangout-- wardly beyond the range of movement of said members, two flexible elements engaged,

respectively, with said guideseach haviugits opposite ends connected, respectively, to

the opposed members whereby said members,

' means for-connecting the opposite endsof an '6. In a vibrating machine, the combinaill) when adjusted, are caused to move simultaneously like distances'in opposite directions, means for securing the' members in various adjusted positions along the bar, means for taking up slackin said flexible elements, and

means for connecting the opposite ends of an applicator strap to said members.

. 8. In a vlbrating machine, the combination of an oscillating shaft having ahead provided with a cylindrical opening, a cylindrical vibrating bar engaged through the opening of the head and supported therein atabout its longitudinal center, said bar having a keyway, a key attached to said head-and occupying the keyway of the bar, members slidably engaged on the opposite end portions of the bar and equipped with keys operating within the keyway of the bar, mechanism for oscillating the aforesaid shaft, and means for connecting the opposite ends'of an applicator strap to said members.

9. In a vibrating machine, the combination of an oscillating shaft having a he d vided with a cylindrical opening, a cylindrical vibrating bar engaged through the opening of the head and supportedtherein at about its longitudinal center, said bar hav- 5 ing a keyway, a key attached to said head and occupying the keyway of the bar, members slidably engaged on the opposite end portions of the bar and equipped with keys operating Within the keyway of the bar, mechanism for oscillating the aforesaid shaft, means for connecting the opposite ends of an applicator strap to said members, guides carried by the ends of the vibrating bar, two flexible elements each having one of its ends secured to one of saidmembers and engaged over the guide carried by the adjacent end of the bar and its opposite end secured to the other member, and means carried by the aforesaid head for securing the flexible elements against movement.

10. In a vibrating machine, the combination of an oscillating shaft having a head, a vibrating bar supported at about its 1ongitudinal center by said head, clamping means carried by the head, members reciprocable along the end portions of the vibrating bar, guides carried by the ends of the bar, two flexible elements each having one of its ends secured to one of said members and 0 engaged about the adjacent guide and through said clamping means and its opposite end secured to the other of said members, means for oscillating the aforesaid shaft, and means for connecting the opposite ends of an applicator strap to said members.

In testimony Whereoffl hereunto aflix my signature.

LEE S. CHADWICK. 

